.head-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 64px;
  padding: 20px 16px;
  border-bottom: solid 1px #ddd;
  background-color: #f5f5f5;
  z-index: 999;

  .head-toolbar {
    float: left;
    height: 24px;
    font-size: medium;
  }
}
